Whats your Three reception like in your iPhone 4?

I have on occasion found 3 to be abysmal in terms of signal strength quality, ranging from 5 bars to nothing whilst sat on my desk at home (in a SE C902).
It'll be less to do with the iPhone 4 (if you're holding it right) and more to do with your location. Those that get a good signal with 3, well good luck to them. If those ads from a few months back are anything to go by then people that live in fields are likely to be better of than those that live in the suburban east of London :/